We analyze all instances of potential or realized Spanish clitic clusters in the Mar&#237;a and Emilio corpora from CHILDES from the ages of 1;09 to 3;00. After a brief stage in which they are completely absent, clusters are produced in target contexts at adult rates. Percentage of realization was the lowest for dative/accusatives, by far the most frequent cluster construction. Clusters produced exhibit extremely low error rates, contain no illicit feature combination, and appropriate repair strategies (spurious <i>se</i>) are employed. There is no evidence of systematic gaps in the paradigm, as their uses approximate adult patterns.